Removing the centrosome from a cell shows that centrioles:
AAre needed for every cell division
BAre not strictly required for division
CAre the direct source of spindle DNA
DAre the only site of protein synthesis
Answer & Solution
Correct answer: B. Are not strictly required for division
1. Centrioles sit inside the centrosome and were long assumed to drive division.
2. The experiment tests that assumption directly.
3. Cells that have had the centrosome removed can still divide.
4. Plant cells, which lack centrosomes, are also capable of cell division.
5. So the exact function in cell division is not clear, and it is certainly not indispensable.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 4 'Cell Structure', sections 4.1-4.6_
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